From: Nicolas Thill <nico@openwrt.org>
Date: Sun, 18 Jun 2006 18:03:31 +0000 (+0000)
Subject: move source file to src/.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a48288c6a4961f4ed1327b47d730c858fb5d6838;p=openwrt%2Fstaging%2Fzorun.git

move source file to src/.

SVN-Revision: 3991
---

diff --git a/openwrt/package/mtd/Makefile b/openwrt/package/mtd/Makefile
index fdb43eee15..f6e94303af 100644
--- a/openwrt/package/mtd/Makefile
+++ b/openwrt/package/mtd/Makefile
@@ -2,8 +2,8 @@
 
 include $(TOPDIR)/rules.mk
 
-PKG_NAME := mtd
-PKG_RELEASE := 4
+PKG_NAME:=mtd
+PKG_RELEASE:=4
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
 
@@ -18,13 +18,20 @@ DESCRIPTION:=Update utility for trx firmware images. To update \\\
 from other firmware or older OpenWrt releases.
 endef
 
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+	$(CP) ./src/* $(PKG_BUILD_DIR)/
+endef
+
 define Build/Compile
-	$(TARGET_CC) $(TARGET_CFLAGS) -o $(PKG_BUILD_DIR)/mtd mtd.c
+	$(MAKE) -C $(PKG_BUILD_DIR) \
+		CC="$(TARGET_CC)" CFLAGS="$(TARGET_CFLAGS)" \
+		all
 endef
 
 define Package/mtd/install
 	install -d -m0755 $(1)/sbin
-	install -m0755 $(PKG_BUILD_DIR)/mtd $(1)/sbin
+	install -m0755 $(PKG_BUILD_DIR)/mtd $(1)/sbin/
 endef
 
 $(eval $(call BuildPackage,mtd))
diff --git a/openwrt/package/mtd/mtd.c b/openwrt/package/mtd/mtd.c
deleted file mode 100644
index 23e99160a1..0000000000
--- a/openwrt/package/mtd/mtd.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * mtd - simple memory technology device manipulation tool
- *
- * Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>,
- *	                  Felix Fietkau <nbd@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * $Id$
- *
- * The code is based on the linux-mtd examples.
- */
-
-#include <limits.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <error.h>
-#include <time.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <sys/reboot.h>
-#include <string.h>
-
-#include <linux/mtd/mtd.h>
-
-#define TRX_MAGIC       0x30524448      /* "HDR0" */
-#define BUFSIZE (16 * 1024)
-#define MAX_ARGS 8
-
-#define DEBUG
-
-#define SYSTYPE_UNKNOWN     0
-#define SYSTYPE_BROADCOM    1
-/* to be continued */
-
-struct trx_header {
-	uint32_t magic;		/* "HDR0" */
-	uint32_t len;		/* Length of file including header */
-	uint32_t crc32;		/* 32-bit CRC from flag_version to end of file */
-	uint32_t flag_version;	/* 0:15 flags, 16:31 version */
-	uint32_t offsets[3];    /* Offsets of partitions from start of header */
-};
-
-char buf[BUFSIZE];
-int buflen;
-
-int
-image_check_bcom(int imagefd, const char *mtd)
-{
-	struct trx_header *trx = (struct trx_header *) buf;
-	struct mtd_info_user mtdInfo;
-	int fd;
-
-	buflen = read(imagefd, buf, 32);
-	if (buflen < 32) {
-		fprintf(stdout, "Could not get image header, file too small (%ld bytes)\n", buflen);
-		return 0;
-	}
-
-	switch(trx->magic) {
-		case 0x47343557: /* W54G */
-		case 0x53343557: /* W54S */
-		case 0x73343557: /* W54s */
-		case 0x46343557: /* W54F */
-		case 0x55343557: /* W54U */
-			/* ignore the first 32 bytes */
-			buflen = read(imagefd, buf, sizeof(struct trx_header));
-			break;
-	}
-	
-	if (trx->magic != TRX_MAGIC || trx->len < sizeof(struct trx_header)) {
-		fprintf(stderr, "Bad trx header\n");
-		fprintf(stderr, "If this is a firmware in bin format, like some of the\n"
-				"original firmware files are, use following command to convert to trx:\n"
-				"dd if=firmware.bin of=firmware.trx bs=32 skip=1\n");
-		return 0;
-	}
-
-	/* check if image fits to mtd device */
-	fd = mtd_open(mtd, O_RDWR | O_SYNC);
-	if(fd < 0) {
-		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
-		exit(1);
-	}
-
-	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
-		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
-		exit(1);
-	}
-		
-	if(mtdInfo.size < trx->len) {
-		fprintf(stderr, "Image too big for partition: %s\n", mtd);
-		close(fd);
-		return 0;
-	}	
-	
-	close(fd);
-	return 1;
-}
-
-int
-image_check(int imagefd, const char *mtd)
-{
-	int fd, systype;
-	size_t count;
-	char *c;
-	FILE *f;
-
-	systype = SYSTYPE_UNKNOWN;
-	f = fopen("/proc/cpuinfo", "r");
-	while (!feof(f) && (fgets(buf, BUFSIZE - 1, f) != NULL)) {
-		if ((strncmp(buf, "system type", 11) == 0) && (c = strchr(buf, ':'))) {
-			c += 2;
-			if (strncmp(c, "Broadcom BCM947XX", 17) == 0)
-				systype = SYSTYPE_BROADCOM;
-		}
-	}
-	fclose(f);
-	
-	switch(systype) {
-		case SYSTYPE_BROADCOM:
-			return image_check_bcom(imagefd, mtd);
-		default:
-			return 1;
-	}
-}
-
-int mtd_check(char *mtd)
-{
-	struct mtd_info_user mtdInfo;
-	int fd;
-
-	fd = mtd_open(mtd, O_RDWR | O_SYNC);
-	if(fd < 0) {
-		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
-		return 0;
-	}
-
-	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
-		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
-		close(fd);
-		return 0;
-	}
-
-	close(fd);
-	return 1;
-}
-
-int
-mtd_unlock(const char *mtd)
-{
-	int fd;
-	struct mtd_info_user mtdInfo;
-	struct erase_info_user mtdLockInfo;
-
-	fd = mtd_open(mtd, O_RDWR | O_SYNC);
-	if(fd < 0) {
-		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
-		exit(1);
-	}
-
-	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
-		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
-		close(fd);
-		exit(1);
-	}
-
-	mtdLockInfo.start = 0;
-	mtdLockInfo.length = mtdInfo.size;
-	if(ioctl(fd, MEMUNLOCK, &mtdLockInfo)) {
-		close(fd);
-		return 0;
-	}
-		
-	close(fd);
-	return 0;
-}
-
-int
-mtd_open(const char *mtd, int flags)
-{
-	FILE *fp;
-	char dev[PATH_MAX];
-	int i;
-
-	if ((fp = fopen("/proc/mtd", "r"))) {
-		while (fgets(dev, sizeof(dev), fp)) {
-			if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
-				snprintf(dev, sizeof(dev), "/dev/mtd/%d", i);
-				fclose(fp);
-				return open(dev, flags);
-			}
-		}
-		fclose(fp);
-	}
-
-	return open(mtd, flags);
-}
-
-int
-mtd_erase(const char *mtd)
-{
-	int fd;
-	struct mtd_info_user mtdInfo;
-	struct erase_info_user mtdEraseInfo;
-
-	fd = mtd_open(mtd, O_RDWR | O_SYNC);
-	if(fd < 0) {
-		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
-		exit(1);
-	}
-
-	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
-		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
-		close(fd);
-		exit(1);
-	}
-
-	mtdEraseInfo.length = mtdInfo.erasesize;
-
-	for (mtdEraseInfo.start = 0;
-		 mtdEraseInfo.start < mtdInfo.size;
-		 mtdEraseInfo.start += mtdInfo.erasesize) {
-		
-		ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
-		if(ioctl(fd, MEMERASE, &mtdEraseInfo)) {
-			fprintf(stderr, "Could not erase MTD device: %s\n", mtd);
-			close(fd);
-			exit(1);
-		}
-	}		
-
-	close(fd);
-	return 0;
-
-}
-
-int
-mtd_write(int imagefd, const char *mtd, int quiet)
-{
-	int fd, i, result;
-	size_t r, w, e;
-	struct mtd_info_user mtdInfo;
-	struct erase_info_user mtdEraseInfo;
-	int ret = 0;
-
-	fd = mtd_open(mtd, O_RDWR | O_SYNC);
-	if(fd < 0) {
-		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
-		exit(1);
-	}
-
-	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
-		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
-		close(fd);
-		exit(1);
-	}
-		
-	r = w = e = 0;
-	if (!quiet)
-		fprintf(stderr, " [ ]");
-
-	for (;;) {
-		/* buffer may contain data already (from trx check) */
-		r = buflen;
-		r += read(imagefd, buf + buflen, BUFSIZE - buflen);
-		w += r;
-
-		/* EOF */
-		if (r <= 0) break;
-
-		/* need to erase the next block before writing data to it */
-		while (w > e) {
-			mtdEraseInfo.start = e;
-			mtdEraseInfo.length = mtdInfo.erasesize;
-
-			if (!quiet)
-				fprintf(stderr, "\b\b\b[e]");
-			/* erase the chunk */
-			if (ioctl (fd,MEMERASE,&mtdEraseInfo) < 0) {
-				fprintf(stderr, "Erasing mtd failed: %s\n", mtd);
-				exit(1);
-			}
-			e += mtdInfo.erasesize;
-		}
-		
-		if (!quiet)
-			fprintf(stderr, "\b\b\b[w]");
-		
-		if ((result = write(fd, buf, r)) < r) {
-			if (result < 0) {
-				fprintf(stderr, "Error writing image.\n");
-				exit(1);
-			} else {
-				fprintf(stderr, "Insufficient space.\n");
-				exit(1);
-			}
-		}
-		
-		buflen = 0;
-	}
-	if (!quiet)
-		fprintf(stderr, "\b\b\b\b");
-
-	close(fd);
-	return 0;
-}
-
-void usage(void)
-{
-	fprintf(stderr, "Usage: mtd [<options> ...] <command> [<arguments> ...] <device>\n\n"
-	"The device is in the format of mtdX (eg: mtd4) or its label.\n"
-	"mtd recognizes these commands:\n"
-	"        unlock                  unlock the device\n"
-	"        erase                   erase all data on device\n"
-	"        write <imagefile>|-     write <imagefile> (use - for stdin) to device\n"
-	"Following options are available:\n"
-	"        -q                      quiet mode (once: no [w] on writing,\n"
-	"                                           twice: no status messages)\n"
-	"        -r                      reboot after successful command\n"
-	"        -f                      force write without trx checks\n"
-	"        -e <device>             erase <device> before executing the command\n\n"
-	"Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards\n"
-	"         mtd -r write linux.trx linux\n\n");
-	exit(1);
-}
-
-int main (int argc, char **argv)
-{
-	int ch, i, boot, unlock, imagefd, force, quiet, unlocked;
-	char *erase[MAX_ARGS], *device, *imagefile;
-	enum {
-		CMD_ERASE,
-		CMD_WRITE,
-		CMD_UNLOCK
-	} cmd;
-	
-	erase[0] = NULL;
-	boot = 0;
-	force = 0;
-	buflen = 0;
-	quiet = 0;
-
-	while ((ch = getopt(argc, argv, "frqe:")) != -1)
-		switch (ch) {
-			case 'f':
-				force = 1;
-				break;
-			case 'r':
-				boot = 1;
-				break;
-			case 'q':
-				quiet++;
-				break;
-			case 'e':
-				i = 0;
-				while ((erase[i] != NULL) && ((i + 1) < MAX_ARGS))
-					i++;
-					
-				erase[i++] = optarg;
-				erase[i] = NULL;
-				break;
-			
-			case '?':
-			default:
-				usage();
-		}
-	argc -= optind;
-	argv += optind;
-	
-	if (argc < 2)
-		usage();
-
-	if ((strcmp(argv[0], "unlock") == 0) && (argc == 2)) {
-		cmd = CMD_UNLOCK;
-		device = argv[1];
-	} else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) {
-		cmd = CMD_ERASE;
-		device = argv[1];
-	} else if ((strcmp(argv[0], "write") == 0) && (argc == 3)) {
-		cmd = CMD_WRITE;
-		device = argv[2];
-	
-		if (strcmp(argv[1], "-") == 0) {
-			imagefile = "<stdin>";
-			imagefd = 0;
-		} else {
-			imagefile = argv[1];
-			if ((imagefd = open(argv[1], O_RDONLY)) < 0) {
-				fprintf(stderr, "Couldn't open image file: %s!\n", imagefile);
-				exit(1);
-			}
-		}
-	
-		/* check trx file before erasing or writing anything */
-		if (!image_check(imagefd, device)) {
-			if ((quiet < 2) || !force)
-				fprintf(stderr, "TRX check failed!\n");
-			if (!force)
-				exit(1);
-		} else {
-			if (!mtd_check(device)) {
-				fprintf(stderr, "Can't open device for writing!\n");
-				exit(1);
-			}
-		}
-	} else {
-		usage();
-	}
-
-	sync();
-	
-	i = 0;
-	unlocked = 0;
-	while (erase[i] != NULL) {
-		if (quiet < 2)
-			fprintf(stderr, "Unlocking %s ...\n", erase[i]);
-		mtd_unlock(erase[i]);
-		if (quiet < 2)
-			fprintf(stderr, "Erasing %s ...\n", erase[i]);
-		mtd_erase(erase[i]);
-		if (strcmp(erase[i], device) == 0)
-			unlocked = 1;
-		i++;
-	}
-	
-	if (!unlocked) {
-		if (quiet < 2) 
-			fprintf(stderr, "Unlocking %s ...\n", device);
-		mtd_unlock(device);
-	}
-		
-	switch (cmd) {
-		case CMD_UNLOCK:
-			break;
-		case CMD_ERASE:
-			if (quiet < 2)
-				fprintf(stderr, "Erasing %s ...\n", device);
-			mtd_erase(device);
-			break;
-		case CMD_WRITE:
-			if (quiet < 2)
-				fprintf(stderr, "Writing from %s to %s ... ", imagefile, device);
-			mtd_write(imagefd, device, quiet);
-			if (quiet < 2)
-				fprintf(stderr, "\n");
-			break;
-	}
-
-	sync();
-	
-	if (boot)
-		kill(1, 15); // send SIGTERM to init for reboot
-
-	return 0;
-}
diff --git a/openwrt/package/mtd/src/Makefile b/openwrt/package/mtd/src/Makefile
new file mode 100644
index 0000000000..b9f256ad0c
--- /dev/null
+++ b/openwrt/package/mtd/src/Makefile
@@ -0,0 +1,12 @@
+# $Id$
+
+all: mtd
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $^
+
+mtd: mtd.o
+	$(CC) -o $@ $^
+
+clean:
+	rm -f *.o mtd
diff --git a/openwrt/package/mtd/src/mtd.c b/openwrt/package/mtd/src/mtd.c
new file mode 100644
index 0000000000..23e99160a1
--- /dev/null
+++ b/openwrt/package/mtd/src/mtd.c
@@ -0,0 +1,475 @@
+/*
+ * mtd - simple memory technology device manipulation tool
+ *
+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>,
+ *	                  Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * $Id$
+ *
+ * The code is based on the linux-mtd examples.
+ */
+
+#include <limits.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <error.h>
+#include <time.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/reboot.h>
+#include <string.h>
+
+#include <linux/mtd/mtd.h>
+
+#define TRX_MAGIC       0x30524448      /* "HDR0" */
+#define BUFSIZE (16 * 1024)
+#define MAX_ARGS 8
+
+#define DEBUG
+
+#define SYSTYPE_UNKNOWN     0
+#define SYSTYPE_BROADCOM    1
+/* to be continued */
+
+struct trx_header {
+	uint32_t magic;		/* "HDR0" */
+	uint32_t len;		/* Length of file including header */
+	uint32_t crc32;		/* 32-bit CRC from flag_version to end of file */
+	uint32_t flag_version;	/* 0:15 flags, 16:31 version */
+	uint32_t offsets[3];    /* Offsets of partitions from start of header */
+};
+
+char buf[BUFSIZE];
+int buflen;
+
+int
+image_check_bcom(int imagefd, const char *mtd)
+{
+	struct trx_header *trx = (struct trx_header *) buf;
+	struct mtd_info_user mtdInfo;
+	int fd;
+
+	buflen = read(imagefd, buf, 32);
+	if (buflen < 32) {
+		fprintf(stdout, "Could not get image header, file too small (%ld bytes)\n", buflen);
+		return 0;
+	}
+
+	switch(trx->magic) {
+		case 0x47343557: /* W54G */
+		case 0x53343557: /* W54S */
+		case 0x73343557: /* W54s */
+		case 0x46343557: /* W54F */
+		case 0x55343557: /* W54U */
+			/* ignore the first 32 bytes */
+			buflen = read(imagefd, buf, sizeof(struct trx_header));
+			break;
+	}
+	
+	if (trx->magic != TRX_MAGIC || trx->len < sizeof(struct trx_header)) {
+		fprintf(stderr, "Bad trx header\n");
+		fprintf(stderr, "If this is a firmware in bin format, like some of the\n"
+				"original firmware files are, use following command to convert to trx:\n"
+				"dd if=firmware.bin of=firmware.trx bs=32 skip=1\n");
+		return 0;
+	}
+
+	/* check if image fits to mtd device */
+	fd = mtd_open(mtd, O_RDWR | O_SYNC);
+	if(fd < 0) {
+		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+		exit(1);
+	}
+
+	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+		exit(1);
+	}
+		
+	if(mtdInfo.size < trx->len) {
+		fprintf(stderr, "Image too big for partition: %s\n", mtd);
+		close(fd);
+		return 0;
+	}	
+	
+	close(fd);
+	return 1;
+}
+
+int
+image_check(int imagefd, const char *mtd)
+{
+	int fd, systype;
+	size_t count;
+	char *c;
+	FILE *f;
+
+	systype = SYSTYPE_UNKNOWN;
+	f = fopen("/proc/cpuinfo", "r");
+	while (!feof(f) && (fgets(buf, BUFSIZE - 1, f) != NULL)) {
+		if ((strncmp(buf, "system type", 11) == 0) && (c = strchr(buf, ':'))) {
+			c += 2;
+			if (strncmp(c, "Broadcom BCM947XX", 17) == 0)
+				systype = SYSTYPE_BROADCOM;
+		}
+	}
+	fclose(f);
+	
+	switch(systype) {
+		case SYSTYPE_BROADCOM:
+			return image_check_bcom(imagefd, mtd);
+		default:
+			return 1;
+	}
+}
+
+int mtd_check(char *mtd)
+{
+	struct mtd_info_user mtdInfo;
+	int fd;
+
+	fd = mtd_open(mtd, O_RDWR | O_SYNC);
+	if(fd < 0) {
+		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+		return 0;
+	}
+
+	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+		close(fd);
+		return 0;
+	}
+
+	close(fd);
+	return 1;
+}
+
+int
+mtd_unlock(const char *mtd)
+{
+	int fd;
+	struct mtd_info_user mtdInfo;
+	struct erase_info_user mtdLockInfo;
+
+	fd = mtd_open(mtd, O_RDWR | O_SYNC);
+	if(fd < 0) {
+		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+		exit(1);
+	}
+
+	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+		close(fd);
+		exit(1);
+	}
+
+	mtdLockInfo.start = 0;
+	mtdLockInfo.length = mtdInfo.size;
+	if(ioctl(fd, MEMUNLOCK, &mtdLockInfo)) {
+		close(fd);
+		return 0;
+	}
+		
+	close(fd);
+	return 0;
+}
+
+int
+mtd_open(const char *mtd, int flags)
+{
+	FILE *fp;
+	char dev[PATH_MAX];
+	int i;
+
+	if ((fp = fopen("/proc/mtd", "r"))) {
+		while (fgets(dev, sizeof(dev), fp)) {
+			if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
+				snprintf(dev, sizeof(dev), "/dev/mtd/%d", i);
+				fclose(fp);
+				return open(dev, flags);
+			}
+		}
+		fclose(fp);
+	}
+
+	return open(mtd, flags);
+}
+
+int
+mtd_erase(const char *mtd)
+{
+	int fd;
+	struct mtd_info_user mtdInfo;
+	struct erase_info_user mtdEraseInfo;
+
+	fd = mtd_open(mtd, O_RDWR | O_SYNC);
+	if(fd < 0) {
+		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+		exit(1);
+	}
+
+	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+		close(fd);
+		exit(1);
+	}
+
+	mtdEraseInfo.length = mtdInfo.erasesize;
+
+	for (mtdEraseInfo.start = 0;
+		 mtdEraseInfo.start < mtdInfo.size;
+		 mtdEraseInfo.start += mtdInfo.erasesize) {
+		
+		ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
+		if(ioctl(fd, MEMERASE, &mtdEraseInfo)) {
+			fprintf(stderr, "Could not erase MTD device: %s\n", mtd);
+			close(fd);
+			exit(1);
+		}
+	}		
+
+	close(fd);
+	return 0;
+
+}
+
+int
+mtd_write(int imagefd, const char *mtd, int quiet)
+{
+	int fd, i, result;
+	size_t r, w, e;
+	struct mtd_info_user mtdInfo;
+	struct erase_info_user mtdEraseInfo;
+	int ret = 0;
+
+	fd = mtd_open(mtd, O_RDWR | O_SYNC);
+	if(fd < 0) {
+		fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+		exit(1);
+	}
+
+	if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+		fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+		close(fd);
+		exit(1);
+	}
+		
+	r = w = e = 0;
+	if (!quiet)
+		fprintf(stderr, " [ ]");
+
+	for (;;) {
+		/* buffer may contain data already (from trx check) */
+		r = buflen;
+		r += read(imagefd, buf + buflen, BUFSIZE - buflen);
+		w += r;
+
+		/* EOF */
+		if (r <= 0) break;
+
+		/* need to erase the next block before writing data to it */
+		while (w > e) {
+			mtdEraseInfo.start = e;
+			mtdEraseInfo.length = mtdInfo.erasesize;
+
+			if (!quiet)
+				fprintf(stderr, "\b\b\b[e]");
+			/* erase the chunk */
+			if (ioctl (fd,MEMERASE,&mtdEraseInfo) < 0) {
+				fprintf(stderr, "Erasing mtd failed: %s\n", mtd);
+				exit(1);
+			}
+			e += mtdInfo.erasesize;
+		}
+		
+		if (!quiet)
+			fprintf(stderr, "\b\b\b[w]");
+		
+		if ((result = write(fd, buf, r)) < r) {
+			if (result < 0) {
+				fprintf(stderr, "Error writing image.\n");
+				exit(1);
+			} else {
+				fprintf(stderr, "Insufficient space.\n");
+				exit(1);
+			}
+		}
+		
+		buflen = 0;
+	}
+	if (!quiet)
+		fprintf(stderr, "\b\b\b\b");
+
+	close(fd);
+	return 0;
+}
+
+void usage(void)
+{
+	fprintf(stderr, "Usage: mtd [<options> ...] <command> [<arguments> ...] <device>\n\n"
+	"The device is in the format of mtdX (eg: mtd4) or its label.\n"
+	"mtd recognizes these commands:\n"
+	"        unlock                  unlock the device\n"
+	"        erase                   erase all data on device\n"
+	"        write <imagefile>|-     write <imagefile> (use - for stdin) to device\n"
+	"Following options are available:\n"
+	"        -q                      quiet mode (once: no [w] on writing,\n"
+	"                                           twice: no status messages)\n"
+	"        -r                      reboot after successful command\n"
+	"        -f                      force write without trx checks\n"
+	"        -e <device>             erase <device> before executing the command\n\n"
+	"Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards\n"
+	"         mtd -r write linux.trx linux\n\n");
+	exit(1);
+}
+
+int main (int argc, char **argv)
+{
+	int ch, i, boot, unlock, imagefd, force, quiet, unlocked;
+	char *erase[MAX_ARGS], *device, *imagefile;
+	enum {
+		CMD_ERASE,
+		CMD_WRITE,
+		CMD_UNLOCK
+	} cmd;
+	
+	erase[0] = NULL;
+	boot = 0;
+	force = 0;
+	buflen = 0;
+	quiet = 0;
+
+	while ((ch = getopt(argc, argv, "frqe:")) != -1)
+		switch (ch) {
+			case 'f':
+				force = 1;
+				break;
+			case 'r':
+				boot = 1;
+				break;
+			case 'q':
+				quiet++;
+				break;
+			case 'e':
+				i = 0;
+				while ((erase[i] != NULL) && ((i + 1) < MAX_ARGS))
+					i++;
+					
+				erase[i++] = optarg;
+				erase[i] = NULL;
+				break;
+			
+			case '?':
+			default:
+				usage();
+		}
+	argc -= optind;
+	argv += optind;
+	
+	if (argc < 2)
+		usage();
+
+	if ((strcmp(argv[0], "unlock") == 0) && (argc == 2)) {
+		cmd = CMD_UNLOCK;
+		device = argv[1];
+	} else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) {
+		cmd = CMD_ERASE;
+		device = argv[1];
+	} else if ((strcmp(argv[0], "write") == 0) && (argc == 3)) {
+		cmd = CMD_WRITE;
+		device = argv[2];
+	
+		if (strcmp(argv[1], "-") == 0) {
+			imagefile = "<stdin>";
+			imagefd = 0;
+		} else {
+			imagefile = argv[1];
+			if ((imagefd = open(argv[1], O_RDONLY)) < 0) {
+				fprintf(stderr, "Couldn't open image file: %s!\n", imagefile);
+				exit(1);
+			}
+		}
+	
+		/* check trx file before erasing or writing anything */
+		if (!image_check(imagefd, device)) {
+			if ((quiet < 2) || !force)
+				fprintf(stderr, "TRX check failed!\n");
+			if (!force)
+				exit(1);
+		} else {
+			if (!mtd_check(device)) {
+				fprintf(stderr, "Can't open device for writing!\n");
+				exit(1);
+			}
+		}
+	} else {
+		usage();
+	}
+
+	sync();
+	
+	i = 0;
+	unlocked = 0;
+	while (erase[i] != NULL) {
+		if (quiet < 2)
+			fprintf(stderr, "Unlocking %s ...\n", erase[i]);
+		mtd_unlock(erase[i]);
+		if (quiet < 2)
+			fprintf(stderr, "Erasing %s ...\n", erase[i]);
+		mtd_erase(erase[i]);
+		if (strcmp(erase[i], device) == 0)
+			unlocked = 1;
+		i++;
+	}
+	
+	if (!unlocked) {
+		if (quiet < 2) 
+			fprintf(stderr, "Unlocking %s ...\n", device);
+		mtd_unlock(device);
+	}
+		
+	switch (cmd) {
+		case CMD_UNLOCK:
+			break;
+		case CMD_ERASE:
+			if (quiet < 2)
+				fprintf(stderr, "Erasing %s ...\n", device);
+			mtd_erase(device);
+			break;
+		case CMD_WRITE:
+			if (quiet < 2)
+				fprintf(stderr, "Writing from %s to %s ... ", imagefile, device);
+			mtd_write(imagefd, device, quiet);
+			if (quiet < 2)
+				fprintf(stderr, "\n");
+			break;
+	}
+
+	sync();
+	
+	if (boot)
+		kill(1, 15); // send SIGTERM to init for reboot
+
+	return 0;
+}